US2930714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of impregnating polytetrafluoroethylene material with n-vinyl carbazole
Assignee: Sprague Electric Co
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Filing: 1959-03-05
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Granted: 1960-03-29
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Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 Paul H Netherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445; H01B3/448; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/20; C08J2327/00; C08J2327/02; C08J2327/12; C08J2327/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS OF PRODUCING A TACKY SURFACE UPON AN UNFILED POLYTETRAFLUOROETHYLENE RESINOUS MATERIAL OF A MOLECULAR WEIGHT OF OVER 10,000 WHICH COMPRISES COVERING SAID RESINOUS MATERIAL WITH A TACKY SURFACE BY APPLYING LIQUID N-VINLY CARBAZOLE AND SUBJECTING SAID SOCOVERED RESINOUS MATERIAL FOR A PERIOD SUFFICIENT TO CAUSE PENETRATION OF THE SAID N-VINLY CARBAZOLE INTO THE SAID
Claim 2
Dependent Claim
56 words
A PROCESS OF PRODUCING A TACKY SURFACE UPON AN UNFILED POLYTETRAFLUOROETHYLENE RESINOUS MATERIAL OF A MOLECULAR WEIGHT OF OVER 10,000 WHICH COMPRISES COVERING SAID RESINOUS MATERIAL WITH A TACKY SURFACE BY APPLYING LIQUID N-VINLY CARBAZOLE AND SUBJECTING SAID SOCOVERED RESINOUS MATERIAL FOR A PERIOD SUFFICIENT TO CAUSE PENETRATION OF THE SAID N-VINLY CARBAZOLE INTO THE SAID
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |