Patent US2652945A successfully refreshed from Google Patents.
US2652945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank closure
Assignee: Motors Liquidation Co
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Filing: 1950-02-11
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Granted: 1953-09-22
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Expires: 1970-02-11
Abstract
No abstract record available.
Inventors
- 👤 Walker Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:51
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1805562A
Cited
US1946768A
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US1964277A
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US1923336A
Cited
US1990621A
Cited
US2316507A
Cited
US2346723A
Cited
US2501621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |