US2890977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of doors from plastics in a single operation
Assignee: Individual
•
Filing: 1953-09-16
•
Granted: 1959-06-16
•
Expires: 1973-09-16
Abstract
No abstract record available.
Inventors
- 👤 Bayer Erich
- 👤 Rizzi Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:09
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/001; B27; B27D; B27D1/00; B27D1/04; B27D1/06; B29C; B29C43/00; B29C65/00; B29C65/02; B29C66/00; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72327; B29C66/72328; E; E06; E06B; E06B3/00; E06B3/70; E06B3/72; E06B3/74; B29C66/72329; E06B3/7015; E06B3/7017; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE METHOD OF MANUFACTURING PANEL DOORS HAVING A RIGID PERIMETRIC DOOR FRAMEWORK SURROUNDING AND SUPPORTING A PAIR OF SPACED FACING PANELS BETWEEN WHICH THERE IS COMPRESSIBLE FILLER MATERIAL, WHICH COMPRISES IMPREGNATING SAID FRAMEWORK AND PANELS WITH THERMOSETTING RESIN, ASSEMBLING SAID DOOR FRAMEWORK, PANELS, AND FILLER MATERIAL, THE PANELS BEING MARGINALLY DISPOSED WITHIN THE INTERNAL DIMENSIONS OF THE FRAMEWORK AS IN THE FINISHED DOOR, THE TOTAL THICKNESS OF THE PANELS AND COMPRESSIBLE MATERIAL BEING INITIALLY GREATER THAN THAT IN THE FINISHED DOOR, SECURING SAID FRAMEWORK AND PANELS IN SAID ASSEMBLED DISPOSITION AND AGAINST LATERAL EXPANSION BY THE APPLICATION OF RESTRAINT AGAINST THE PERIMETRIC EDGE OF SAID FRAME, AND THEN APPLYING PRESSURE AND HEAT TO THE OUTSIDE SURFACES OF SAID PANELS TO COMPRESS THE FILLER MATERIAL AND BOND THE PANELS IN ONE OPERATION INTO A UNITARY DOOR STRUCTURE WITH SAID FRAMEWORK BY REASON OF FLOW OF THE RESIN IMPREGNATED IN SAID FRAMEWORK AND PANELS, WHEREBY A DOOR OF SUBSTANTIALLY FINISHED OUTLINE IS DIRECTLY OBTAINED.
Claim 2
Independent Claim
162 words
THE METHOD OF MANUFACTURING PANEL DOORS HAVING A RIGID PERIMETRIC DOOR FRAMEWORK SURROUNDING AND SUPPORTING A PAIR OF SPACED FACING PANELS BETWEEN WHICH THERE IS COMPRESSIBLE FILLER MATERIAL, WHICH COMPRISES IMPREGNATING SAID FRAMEWORK AND PANELS WITH THERMOSETTING RESIN, ASSEMBLING SAID DOOR FRAMEWORK, PANELS, AND FILLER MATERIAL, THE PANELS BEING MARGINALLY DISPOSED WITHIN THE INTERNAL DIMENSIONS OF THE FRAMEWORK AS IN THE FINISHED DOOR, THE TOTAL THICKNESS OF THE PANELS AND COMPRESSIBLE MATERIAL BEING INITIALLY GREATER THAN THAT IN THE FINISHED DOOR, SECURING SAID FRAMEWORK AND PANELS IN SAID ASSEMBLED DISPOSITION AND AGAINST LATERAL EXPANSION BY THE APPLICATION OF RESTRAINT AGAINST THE PERIMETRIC EDGE OF SAID FRAME, AND THEN APPLYING PRESSURE AND HEAT TO THE OUTSIDE SURFACES OF SAID PANELS TO COMPRESS THE FILLER MATERIAL AND BOND THE PANELS IN ONE OPERATION INTO A UNITARY DOOR STRUCTURE WITH SAID FRAMEWORK BY REASON OF FLOW OF THE RESIN IMPREGNATED IN SAID FRAMEWORK AND PANELS, WHEREBY A DOOR OF SUBSTANTIALLY FINISHED OUTLINE IS DIRECTLY OBTAINED.
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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) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |