US3350249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making impregnated plastic rivet reenforced laminated fiber sheets
Assignee: Gregoire Engineering and Development Co
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Filing: 1964-12-07
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Granted: 1967-10-31
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Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Resta S Gregoire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:04
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/001; B29D99/0021; B29B; B29B15/00; B29B15/08; B29B15/10; B29C; B29C65/00; B29C65/02; B29C65/40; B29C65/42; B29C66/00; B29C66/01; B29C66/02; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/72; B29C66/729; B29C66/7294; B29C66/72941; B29C70/00; B29C70/88; B29C70/887; D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/60; B29C65/425; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/7394; B29C66/73941; B29K; B29K2311/00; B29K2311/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR PREPARING FIBER BOARD WHICH COMPRISES COMPRESSING AND COATING A FIBROUS MATTING WITH AN EFFECTIVE AMOUNT OF A RESINOUS MATERIAL SUFFICIENTLY TO FORM REENFORCING LAYERS ON THE OUTER SURFACES OF SAID MATTING FIRMLY BOUND THERETO BY PARTIAL IMPREGNATION THEREINTO AND SUBSEQUENTLY PIERCING SAID MATTING AS SPACED INTERVALS WITH AN INJECTOR NOZZLE; WITHDRAWING SAID NOZZLE WHILE INJECTING AN EFFECTIVE AMOUNT OF A RESINOUS MATERIAL THERETHROUGH INTO THE VOIDS FORMED THEREBY, SO THAT SAID RESINOUS MATERIAL FORMS TRANSVERSAL RIVETS WHICH BOND THE OUTER LAYERS TOGETHER AND MORE RIGIDLY REINFORCE SAID MATTING BY IMPREGNATION OF SAID RIVET MATERIAL THEREINTO IN THE AREA AROUND SAID VOIDS.
Claim 2
Dependent Claim
104 words
A PROCESS FOR PREPARING FIBER BOARD WHICH COMPRISES COMPRESSING AND COATING A FIBROUS MATTING WITH AN EFFECTIVE AMOUNT OF A RESINOUS MATERIAL SUFFICIENTLY TO FORM REENFORCING LAYERS ON THE OUTER SURFACES OF SAID MATTING FIRMLY BOUND THERETO BY PARTIAL IMPREGNATION THEREINTO AND SUBSEQUENTLY PIERCING SAID MATTING AS SPACED INTERVALS WITH AN INJECTOR NOZZLE; WITHDRAWING SAID NOZZLE WHILE INJECTING AN EFFECTIVE AMOUNT OF A RESINOUS MATERIAL THERETHROUGH INTO THE VOIDS FORMED THEREBY, SO THAT SAID RESINOUS MATERIAL FORMS TRANSVERSAL RIVETS WHICH BOND THE OUTER LAYERS TOGETHER AND MORE RIGIDLY REINFORCE SAID MATTING BY IMPREGNATION OF SAID RIVET MATERIAL THEREINTO IN THE AREA AROUND SAID VOIDS.
References Cited (Backward Citations)
GB145123A
Cited
US2159300A
Cited
US2376698A
Cited
US2557668A
Cited
US2550465A
Cited
US2775998A
Cited
US2890481A
Cited
US3109763A
Cited
US3216167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |