US2586739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas seal
Assignee: Linear Inc
•
Filing: 1947-06-23
•
Granted: 1952-02-19
•
Expires: 1967-06-23
Abstract
No abstract record available.
Inventors
- 👤 Summers Otto Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US126624A
Cited
US131671A
Cited
US391956A
Cited
AT149260B
Cited
US2237494A
Cited
US2251219A
Cited
US2334548A
Cited
US2444249A
Cited
US2479711A
Cited
US2429953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |