Patent US3147548A successfully refreshed from Google Patents.
US3147548A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1962-05-17
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Granted: 1964-09-08
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Expires: 1982-05-17
Abstract
No abstract record available.
Inventors
- 👤 Reginald J Aspeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:41
CPC Classifications
B; B23; B23D; B23D79/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1787229A
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US1838186A
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US2589138A
Cited
US2592649A
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US2638749A
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US2722072A
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US2859676A
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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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |