US3340341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing grids
Assignee: AMERICAN SURFPAC Corp A CORP OF PA
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Filing: 1963-07-01
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Granted: 1967-09-05
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Wallace J Bruder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:04
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/32; F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; F28F25/085; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A METHOD FOR THE PREPARATION OF GRIDS FROM THERMOPLASTIC RESINOUS MATERIAL COMPRISING SUPPLYING A PLURALITY OF ELONGATED THERMOPLASTIC RESINOUS STRIPS, EACH OF SAID STRIPS HAVING A PLURALITY OF SLOTS IN SPACED RELATIONSHIP TO EACH OTHER AND EXTENDING FROM ONE EDGE OF THE STRIP IN A GENERALLY TRANSVERSE DIRECTION, ASSEMBLING SAID STRIPS BY ENGAGING A SLOT OF ONE STRIP WITH A SLOT OF OTHER STRIPS TO FORM A PLURALITY OF LAP JOINTS BETWEEN THE STRIPS TO FORM A LOOSE GRID-LIKE STRUCTURE. COLLAPSING THE GRID-LIKE STRUCTURE TO A GENERALLY FLAT CONFIGURATION, SUBSEQUENTLY REPOSITIONING THE FLATTENED STRUCTURE INTO A GRID-LIKE STRUCTURE, POSITIONING SAID LOOSE GRID-LIKE STRUCTURE IN A CONFIGURATION GENERALLY APPROXIMATING THE CONFIGURATION OF THE FINAL DESIRED ARTICLE AND HEAT FUSING SAID ASSEMBLY OF STRIPS TOGETHER, TO FORM A GENERALLY RIGID STRUCTURE BY HEATING THE EDGES OF THE STRIPS TO A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE PLASTIC FLOW AND BOND ONE SET OF STRIPS TO THE OTHER SET OF STRIPS AND FORMING A FLANGE ON EACH EDGE OF THE STRIP AND SUBSEQUENTLY COOLING THE STRIPS BELOW THE PLASTIC FLOW TEMPERATURE TO PROVIDE A RIGID GRID-LIKE STRUCTURE.
Claim 2
Independent Claim
183 words
A METHOD FOR THE PREPARATION OF GRIDS FROM THERMOPLASTIC RESINOUS MATERIAL COMPRISING SUPPLYING A PLURALITY OF ELONGATED THERMOPLASTIC RESINOUS STRIPS, EACH OF SAID STRIPS HAVING A PLURALITY OF SLOTS IN SPACED RELATIONSHIP TO EACH OTHER AND EXTENDING FROM ONE EDGE OF THE STRIP IN A GENERALLY TRANSVERSE DIRECTION, ASSEMBLING SAID STRIPS BY ENGAGING A SLOT OF ONE STRIP WITH A SLOT OF OTHER STRIPS TO FORM A PLURALITY OF LAP JOINTS BETWEEN THE STRIPS TO FORM A LOOSE GRID-LIKE STRUCTURE. COLLAPSING THE GRID-LIKE STRUCTURE TO A GENERALLY FLAT CONFIGURATION, SUBSEQUENTLY REPOSITIONING THE FLATTENED STRUCTURE INTO A GRID-LIKE STRUCTURE, POSITIONING SAID LOOSE GRID-LIKE STRUCTURE IN A CONFIGURATION GENERALLY APPROXIMATING THE CONFIGURATION OF THE FINAL DESIRED ARTICLE AND HEAT FUSING SAID ASSEMBLY OF STRIPS TOGETHER, TO FORM A GENERALLY RIGID STRUCTURE BY HEATING THE EDGES OF THE STRIPS TO A TEMPERATURE SUFFICIENTLY HIGH TO CAUSE PLASTIC FLOW AND BOND ONE SET OF STRIPS TO THE OTHER SET OF STRIPS AND FORMING A FLANGE ON EACH EDGE OF THE STRIP AND SUBSEQUENTLY COOLING THE STRIPS BELOW THE PLASTIC FLOW TEMPERATURE TO PROVIDE A RIGID GRID-LIKE STRUCTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |