US2711266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure closures
Assignee: American Locomotive Co
•
Filing: 1952-03-22
•
Granted: 1955-06-21
•
Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
- 👤 Kopp Sigmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:59
CPC Classifications
F; F28; F28F; F28F9/00; F16; F16J; F16J13/00; F16J13/02; F16J13/10; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926107A
Cited
US2237029A
Cited
US2203364A
Cited
US2252488A
Cited
US2278881A
Cited
US2226495A
Cited
US2296620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |