Patent US2749045A successfully refreshed from Google Patents.
US2749045A
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Pressure and temperature operated steam trap
Assignee: Gustav F Gerdts KG
•
Filing: 1951-05-05
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Granted: 1956-06-05
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Expires: 1971-05-05
Abstract
No abstract record available.
Inventors
- 👤 Pape Hans-Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:44
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/02; F16T1/10; F16T1/08; G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190710607A
Cited
US1755964A
Cited
US1890531A
Cited
US1916696A
Cited
US2033398A
Cited
US2092497A
Cited
CH200787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |