Patent US2647671A successfully refreshed from Google Patents.
US2647671A
Expired / Lapsed
US
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Spring loading machine
Assignee: Individual
•
Filing: 1947-12-15
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Granted: 1953-08-04
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Expires: 1967-12-15
Abstract
No abstract record available.
Inventors
- 👤 James L Mcinerney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:35
CPC Classifications
B; B68; B68G; B68G9/00; B65; B65B; B65B63/00; B65B63/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1527030A
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US1759050A
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US1950186A
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US1994043A
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US2032510A
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US2093531A
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US2317292A
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US2402869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |