Patent US2884944A successfully refreshed from Google Patents.
US2884944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam traps
Assignee: Individual
•
Filing: 1956-06-06
•
Granted: 1959-05-05
•
Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 David E Giles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:19
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/12; F16T1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3102; Y10T137/3105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US203590A
Cited
US1307207A
Cited
US2207681A
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US1935978A
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US2634744A
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US2709450A
Cited
US2817353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |