US2869291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot blasting machines
Assignee: Individual
•
Filing: 1955-05-03
•
Granted: 1959-01-20
•
Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Robert A Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:59
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/02; B24C3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2055930A
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US2250500A
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US2495269A
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US2510927A
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US2468984A
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US2584587A
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US2686991A
Cited
US2692458A
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US2716310A
Cited
US2741878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |