US2641037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing closure
Assignee: TREG Inc
•
Filing: 1950-04-24
•
Granted: 1953-06-09
•
Expires: 1970-04-24
Abstract
No abstract record available.
Inventors
- 👤 Gossner Louis Ernest Elwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:46
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/32; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2502; Y10T24/2505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1734434A
Cited
US1893420A
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FR807192A
Cited
US2188815A
Cited
US2306990A
Cited
US2321926A
Cited
US2347583A
Cited
GB557418A
Cited
US2454214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |