Patent US2746637A successfully refreshed from Google Patents.
US2746637A
Expired / Lapsed
US
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Abrasion resistant liner
Assignee: Individual
•
Filing: 1952-09-17
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Granted: 1956-05-22
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Expires: 1972-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hobart H Todd
- 👤 Paul C Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:06
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419395A
Cited
US1975071A
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US2083491A
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US2209403A
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US2227905A
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US2401627A
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US2639832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |