Patent US2749615A successfully refreshed from Google Patents.
US2749615A
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US
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Assignee: Individual
•
Filing: 1955-01-07
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Granted: 1956-06-12
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Expires: 1975-01-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Griffon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:29
CPC Classifications
B; B26; B26B; B26B13/00; B26B13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1572546A
Cited
US1539302A
Cited
US1915450A
Cited
US2370026A
Cited
US2540255A
Cited
US2650423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |