Patent US3020185A successfully refreshed from Google Patents.
US3020185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire reinforced polytetrafluoroethylene seal
Assignee: Connecticut Hard Rubber Co
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Filing: 1958-07-28
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Granted: 1962-02-06
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Moffitt
- 👤 Alfred S Kidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:34
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/222; B29C70/224; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/2933; Y10T428/294; Y10T428/2942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A FIRE-IMPERVIOUS SEAL COMPRISING AN INNER COMPRESSIBLE METAL-WIRE CORE, AN ENCLOSING WIRE-MESH FABRIC SHEAT, AND AN OUTER SHEAT OF PROMED ADHESIVE RECEPTIVE POLYTETRAFLUOROETHYLENE FILM, THE WIRE-MESH FABRIC SHEAT BEING ADHESIVELY ATTACHED TO THE PRIMED SURFACE OF THE POLYTETRAFLUOROETHYLENE.
Claim 2
Dependent Claim
38 words
A FIRE-IMPERVIOUS SEAL COMPRISING AN INNER COMPRESSIBLE METAL-WIRE CORE, AN ENCLOSING WIRE-MESH FABRIC SHEAT, AND AN OUTER SHEAT OF PROMED ADHESIVE RECEPTIVE POLYTETRAFLUOROETHYLENE FILM, THE WIRE-MESH FABRIC SHEAT BEING ADHESIVELY ATTACHED TO THE PRIMED SURFACE OF THE POLYTETRAFLUOROETHYLENE.
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |