Patent US2831718A successfully refreshed from Google Patents.
US2831718A
Expired / Lapsed
US
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Convertible top header lock assembly
Assignee: Motors Liquidation Co
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Filing: 1955-01-11
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Granted: 1958-04-22
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Expires: 1975-01-11
Abstract
No abstract record available.
Inventors
- 👤 Andrew E Hallek
- 👤 Alfred E Wittke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:58
CPC Classifications
B; B60; B60J; B60J7/00; B60J7/185; B60J7/1851; Y; Y10; Y10S; Y10S292/00; Y10S292/05; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0853; Y10T292/1039
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |