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US2674084A
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US
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Assignee: Individual
•
Filing: 1950-08-28
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Granted: 1954-04-06
•
Expires: 1970-08-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph P G Ratte
- 👤 Bernard N Throckmorton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:56
CPC Classifications
D; D07; D07B; D07B7/00; D07B7/02; D07B7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US9412A
Cited
GB190302740A
Cited
GB371389A
Cited
US1890739A
Cited
US2218352A
Cited
US2250080A
Cited
US2361014A
Cited
US2375459A
Cited
US2579074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |