US3223759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating structures
Assignee: Individual
•
Filing: 1962-03-05
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Granted: 1965-12-14
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Iii Charles S Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:22
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/04; E04G11/045; Y; Y10; Y10S; Y10S249/00; Y10S249/03; Y10S425/00; Y10S425/014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
THE METHOD OF FABRICATING STRUCTURES WITHOUT THE USE OF RIGID INTERIOR FORMS COMPRISING PLACING A COLLAPSIBLE FORM OF FLEXIBLE SUBSTANTIALLY INELASTIC MATERIAL IN A SURROUNDING RIGID ENCLOSURE HAVING INTERIOR SURFACES CONFORMING TO THE SIZE AND SHAPE OF THE EXTERIOR OF THE DESIRED STRUCTURE, SAID FORM ADAPTED WHEN EXPANDED TO ASSUME A SIZE AND SHAPE CORRESPONDING SUBSTANTIALLY TO THE INTERIOR OFA THE DESIRED STRUCTURE, EXPANDING SAID FORM AND POSITIONING IT IN SAID ENCLOSURE WHEREBY THE INTERSPACES BETWEEN THE EXTERIOR SURFACES OF SAID FORM AND THE INTERIOR SURFACES OF SAID ENCLOSURE CORRESPOND TO THE THICKNESS OF THE WALLS OF THE DESIRED STRUCTURE, SIMULTANEOUSLY FLOWING A HARDENABLE PLASTIC MATERIAL INTO SAID INTERSPACES WHILE FLOWING A FLOWABLE FILLER MATERIAL HAVING A DENSITY SUBSTANTIALLY EQUAL TO THAT OF SAID PLASTIC MATERIAL INTO THE INTERIOR OF SAID FORM, CONTROLLING THE RELATIVE FLOW RATES OF SAID PLASTIC AND FILLER MATERIALS SO
Claim 2
Independent Claim
144 words
THE METHOD OF FABRICATING STRUCTURES WITHOUT THE USE OF RIGID INTERIOR FORMS COMPRISING PLACING A COLLAPSIBLE FORM OF FLEXIBLE SUBSTANTIALLY INELASTIC MATERIAL IN A SURROUNDING RIGID ENCLOSURE HAVING INTERIOR SURFACES CONFORMING TO THE SIZE AND SHAPE OF THE EXTERIOR OF THE DESIRED STRUCTURE, SAID FORM ADAPTED WHEN EXPANDED TO ASSUME A SIZE AND SHAPE CORRESPONDING SUBSTANTIALLY TO THE INTERIOR OFA THE DESIRED STRUCTURE, EXPANDING SAID FORM AND POSITIONING IT IN SAID ENCLOSURE WHEREBY THE INTERSPACES BETWEEN THE EXTERIOR SURFACES OF SAID FORM AND THE INTERIOR SURFACES OF SAID ENCLOSURE CORRESPOND TO THE THICKNESS OF THE WALLS OF THE DESIRED STRUCTURE, SIMULTANEOUSLY FLOWING A HARDENABLE PLASTIC MATERIAL INTO SAID INTERSPACES WHILE FLOWING A FLOWABLE FILLER MATERIAL HAVING A DENSITY SUBSTANTIALLY EQUAL TO THAT OF SAID PLASTIC MATERIAL INTO THE INTERIOR OF SAID FORM, CONTROLLING THE RELATIVE FLOW RATES OF SAID PLASTIC AND FILLER MATERIALS SO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |