US2921694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Keller Manufacturing Co Inc
•
Filing: 1958-02-13
•
Granted: 1960-01-19
•
Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 Edward W Decker
- 👤 William J Keller
- 👤 Arthur J Killaren
- 👤 Anton J Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:07
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/01; A47F5/10; A47F5/13; A47F5/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US289721A
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US1293277A
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US1718962A
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US1800679A
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US2377399A
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US2508802A
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US2648442A
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US2693968A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |