US2770259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making same
Assignee: —
•
Filing: —
•
Granted: 1956-11-13
•
Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/14; F16L11/15; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1811; F01N13/1816; F16L27/00; F16L27/10; F16L27/107; F16L27/11; F16L51/00; F16L51/02; F16L51/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US773046A
Cited
US1698210A
Cited
US2050227A
Cited
FR708598A
Cited
US2106495A
Cited
US1946472A
Cited
CH191911A
Cited
US2223691A
Cited
US2352038A
Cited
US2592372A
Cited
US2489844A
Cited
US2445484A
Cited
US2495059A
Cited
US2631640A
Cited
US2699959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |