Patent US1509386A successfully refreshed from Google Patents.
US1509386A
Expired / Lapsed
US
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Pressure-relief valve
Assignee: Guiberson Corp
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Filing: 1923-03-13
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Granted: 1924-09-23
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Expires: 1943-03-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:17
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; F04B53/00; F04B53/10; F04B53/12; F04B53/125; F04B53/129; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7774; Y10T137/7837; Y10T137/7878
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) | 1927-09-23 | 1928-03-24 | 1928-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-23 | 1932-03-24 | 1932-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-23 | 1936-03-24 | 1936-09-23 | $7700.00 | Window Closed / Lapsed |