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US2617866A
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Assignee: Individual
•
Filing: 1948-11-29
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Granted: 1952-11-11
•
Expires: 1968-11-29
Abstract
No abstract record available.
Inventors
- 👤 James S Ballantine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:31
CPC Classifications
B; B23; B23D; B23D7/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/304648; Y10T409/30476; Y10T409/30868; Y10T409/309128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443166A
Cited
US2161273A
Cited
US2213606A
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US2187102A
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US2177821A
Cited
US2217509A
Cited
US2433585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |