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US2554657A
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Assignee: Individual
•
Filing: 1946-12-16
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Granted: 1951-05-29
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Expires: 1966-12-16
Abstract
No abstract record available.
Inventors
- 👤 George M Betterton
- 👤 Andrew J Mello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:46
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/0072; B61D27/0081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1660676A
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US1924237A
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US1884372A
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US2076019A
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US2115238A
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US2272639A
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US2322193A
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US2274998A
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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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |