US2821860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed actuating connection
Assignee: American Machine and Metals Inc
•
Filing: 1955-07-05
•
Granted: 1958-02-04
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 William D Huston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:18
CPC Classifications
F; F16; F16K; F16K37/00; F16K37/0008; G; G01; G01F; G01F23/00; G01F23/0038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB218114A
Cited
US2248322A
Cited
US2365573A
Cited
US2514059A
Cited
US2557542A
Cited
US2625820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |