US1558002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic transmission
Assignee: Oilgear Co
•
Filing: 1923-12-21
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Granted: 1925-10-20
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Expires: 1943-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:09
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/12; F04B49/123; F04B49/128; F04B1/00; F04B1/04; F04B1/0404; F04B1/0439; F04B1/06; F04B1/07; F04B1/10; F04B1/107; F04B1/1071; F04B1/1072; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F04B49/002; F15; F15B; F15B11/00; F15B11/08; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/25; F15B2211/251; F15B2211/252; F15B2211/255; F15B2211/30; F15B2211/305; F15B2211/3056; F15B2211/30565; F15B2211/3058; F15B2211/70; F15B2211/785
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) | 1928-10-19 | 1929-04-20 | 1929-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-10-19 | 1933-04-20 | 1933-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-10-19 | 1937-04-20 | 1937-10-20 | $7700.00 | Window Closed / Lapsed |