US2974501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing rings
Assignee: Sier Bath Gear & Pump Co Inc
•
Filing: 1959-11-09
•
Granted: 1961-03-14
•
Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Kaufman
- 👤 James A Vargas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:31
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/18; F16D3/185; F16J; F16J15/00; F16J15/50; F16J15/52; F16L; F16L27/00; F16L27/02; F16L27/04; Y; Y10; Y10S; Y10S277/00; Y10S277/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093572A
Cited
US2387182A
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US2415888A
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US2650117A
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US2773367A
Cited
US2814449A
Cited
US2841966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |