Patent US2715879A successfully refreshed from Google Patents.
US2715879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trifluorochloroethylene surfaced sheeting roller
Assignee: US Filter Wallace and Tiernan Inc
•
Filing: 1950-05-23
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Granted: 1955-08-23
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Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Hilon W Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:21
CPC Classifications
A; A21; A21C; A21C3/00; A21C3/02; D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; D01H5/80; Y; Y10; Y10S; Y10S425/00; Y10S425/055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1179294A
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US1370709A
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US1430265A
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US1693358A
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GB465520A
Cited
US2403476A
Cited
US2586089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |