Patent US2646991A successfully refreshed from Google Patents.
US2646991A
Expired / Lapsed
US
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Motor road vehicle torsion resistant chassis
Assignee: Austin Motor Co Ltd
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Filing: 1950-04-12
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Granted: 1953-07-28
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Expires: 1970-04-12
Abstract
No abstract record available.
Inventors
- 👤 John H Weaving
- 👤 Kenneth J Dangerfield
- 👤 Thomas K Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:51
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1349589A
Cited
US1789238A
Cited
DE497190C
Cited
US1928942A
Cited
FR762366A
Cited
US2164097A
Cited
US2202859A
Cited
GB515722A
Cited
US2212636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |