Patent US4837580A successfully refreshed from Google Patents.
Patent US1963177A successfully refreshed from Google Patents.
US1963177A
Expired / Lapsed
US
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Sealed quilted material
Assignee: American Hair & Felt Co
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Filing: 1931-08-08
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Granted: 1934-06-19
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Expires: 1951-08-08
Abstract
No abstract record available.
Inventors
- 👤 Smallish Clarence Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:07
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/108; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/24041; Y10T428/2405; Y10T428/24479; Y10T428/24802; Y10T428/24934; Y10T428/28; Y10T442/00; Y10T442/60; Y10T442/693
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-06-18 | 1937-12-18 | 1938-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-18 | 1941-12-18 | 1942-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-18 | 1945-12-18 | 1946-06-19 | $7700.00 | Window Closed / Lapsed |