US2932175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure generator for liquefied gas
Assignee: Herrick L Johnston Inc
•
Filing: 1956-10-30
•
Granted: 1960-04-12
•
Expires: 1976-10-30
Abstract
No abstract record available.
Inventors
- 👤 Claude H May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:37
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F04; F04B; F04B15/00; F04B15/06; F04B15/08; F04B53/00; F04B53/14; F04B53/16; F04B53/162; F04B53/164; F04B7/00; F04B7/0073; F04B9/00; F04B9/08; F04B9/10; F04B9/103; F04B9/105; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |