Patent US1424952A successfully refreshed from Google Patents.
US1424952A
Expired / Lapsed
US
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Housing for vertical screw jacks
Assignee: Whiting Corp
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Filing: 1920-12-22
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Granted: 1922-08-08
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Expires: 1940-12-22
Abstract
No abstract record available.
Inventors
- 👤 John S Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:28
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B66F3/18; Y; Y10; Y10S; Y10S16/00; Y10S16/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-08-07 | 1926-02-06 | 1926-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-08-07 | 1930-02-06 | 1930-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-08-07 | 1934-02-06 | 1934-08-08 | $7700.00 | Window Closed / Lapsed |