Patent US2147031A successfully refreshed from Google Patents.
US2147031A
Expired / Lapsed
US
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Gauge damping construction
Assignee: ROCHESTER Manufacturing CO Inc
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Filing: 1937-04-02
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Granted: 1939-02-14
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Expires: 1957-04-02
Abstract
No abstract record available.
Inventors
- 👤 Hastings Herbert
- 👤 George E Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0007; F; F16; F16L; F16L55/00; F16L55/04; G01L19/06; G01L19/0609
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-02-13 | 1942-08-15 | 1943-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-13 | 1946-08-15 | 1947-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-13 | 1950-08-15 | 1951-02-14 | $7700.00 | Window Closed / Lapsed |