US2573333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed stroke power mechanism
Assignee: WEDGE PROTECTORS Inc
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Filing: 1950-03-31
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Granted: 1951-10-30
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Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Foster F Hillix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:07
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/022; B; B30; B30B; B30B1/00; B30B1/26; B30B1/261; B30B1/32; F15B2211/00; F15B2211/70; F15B2211/775; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/305152; Y10T409/305936; Y10T74/00; Y10T74/18; Y10T74/18992; Y10T74/19; Y10T74/19023; Y10T74/19051; Y10T74/19065
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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |