US2974533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill hammer
Assignee: JOSEPH MORRIS DOING BUSINESS A
•
Filing: 1955-01-31
•
Granted: 1961-03-14
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Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Max J Demo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:05
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/10; B25D11/102; B25D11/104; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024; Y10T74/18056; Y10T74/18296; Y10T74/18304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2009580A
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US2279899A
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US2243820A
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US2377554A
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US2458929A
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US2742265A
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US2630723A
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US2694551A
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US2667357A
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US2780106A
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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) | 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 |