US3271322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic surface
Assignee: EIDP Inc
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Filing: 1964-06-30
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Granted: 1966-09-06
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Alvin B Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/024; B01J37/0242; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/46; B01J23/462; B01J37/0215; B01J37/0219; C; C03; C03C; C03C8/00; G; G01; G01N; G01N1/00; G01N1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A CATALYTIC SURFACE WHICH CONSISTS ESSENTIALLY OF A FILM OF POLYTETRAFLUOROETHYLENE, PARTICULATE CARRIER, AND A CATALYST, THE CATALYST BEING SUPPORTED UPON THE SAID CARRIER AND THE SUPPORTED CATALYST BEING CARRIED UPON A SURFACE AND PARTIALLY EMBEDDED IN SAID FILM.
Claim 2
Dependent Claim
39 words
A CATALYTIC SURFACE WHICH CONSISTS ESSENTIALLY OF A FILM OF POLYTETRAFLUOROETHYLENE, PARTICULATE CARRIER, AND A CATALYST, THE CATALYST BEING SUPPORTED UPON THE SAID CARRIER AND THE SUPPORTED CATALYST BEING CARRIED UPON A SURFACE AND PARTIALLY EMBEDDED IN SAID FILM.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |