US2913274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loop seal
Assignee: EJ Brooks Co
•
Filing: 1957-03-13
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Granted: 1959-11-17
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Winfred M Brooks
- 👤 Sigurd M Moherg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:50
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/03; G09F3/0305; G09F3/037; Y; Y10; Y10T; Y10T292/00; Y10T292/48; Y10T292/494
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |