US2891300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut-off tool
Assignee: Individual
•
Filing: 1954-01-14
•
Granted: 1959-06-23
•
Expires: 1974-01-14
Abstract
No abstract record available.
Inventors
- 👤 Shephard Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:58
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/08; Y; Y10; Y10T; Y10T407/00; Y10T407/23; Y10T407/235; Y10T407/24; Y10T407/245; Y10T407/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US85329A
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US622625A
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US1120782A
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US933338A
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US1738912A
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US1912666A
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FR718805A
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US2187512A
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US2176265A
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US2202591A
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US2322408A
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US2344442A
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US2390653A
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US2424473A
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US2688791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |