US3036809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic diverter for reserve pressure cylinders
Assignee: Individual
•
Filing: 1957-08-09
•
Granted: 1962-05-29
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:24
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/24; F15B2201/00; F15B2201/20; F15B2201/21; F15B2201/30; F15B2201/31; F15B2201/32; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/413; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/7722; Y10T137/7771; Y10T137/7778; Y10T137/8376
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1373599A
Cited
US2174797A
Cited
US2264375A
Cited
US2375411A
Cited
US2474122A
Cited
US2872149A
Cited
US2791229A
Cited
US2789581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |