Patent US2593712A successfully refreshed from Google Patents.
US2593712A
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Filling fitting
Assignee: PETROLEUM ESSENTIALS Inc
•
Filing: 1947-09-27
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Granted: 1952-04-22
•
Expires: 1967-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lloyd K Wells
- 👤 Staples X Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:08
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2276907A
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US2288230A
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US2287750A
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US2465095A
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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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |