US2578784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worm gearing
Assignee: W H MINER Inc
•
Filing: 1947-03-03
•
Granted: 1951-12-18
•
Expires: 1967-03-03
Abstract
No abstract record available.
Inventors
- 👤 George E Dath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:54
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US685544A
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US744308A
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US747463A
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US904931A
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US1661988A
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US1843875A
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US1975961A
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US1950618A
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US2038731A
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US2388863A
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US2414032A
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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) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |