Patent US2931673A successfully refreshed from Google Patents.
US2931673A
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Assignee: Individual
•
Filing: 1955-11-25
•
Granted: 1960-04-05
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Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 John T Gondek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:47
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; Y; Y10; Y10S; Y10S251/00; Y10S251/90; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR958598A
Cited
FR862046A
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US2485504A
Cited
US2509672A
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US2456356A
Cited
US2567527A
Cited
FR1049256A
Cited
GB704117A
Cited
US2739855A
Cited
US2784013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |