US2635907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for shafts
Assignee: BRUMMER Manufacturing CORP
•
Filing: 1950-11-13
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Granted: 1953-04-21
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Expires: 1970-11-13
Abstract
No abstract record available.
Inventors
- 👤 Elmer F Heimbuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:12
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; F16J15/3224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093572A
Cited
US2088703A
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US2208482A
Cited
US2213116A
Cited
US2358536A
Cited
US2509151A
Cited
US2482029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |