Patent US2445455A successfully refreshed from Google Patents.
US2445455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical micrometer gauge
Assignee: Westinghouse Electric Corp
•
Filing: 1941-12-05
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Granted: 1948-07-20
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Expires: 1961-12-05
Abstract
No abstract record available.
Inventors
- 👤 Herbert T Rights
- 👤 Toomim Hershel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:00
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1906551A
Cited
GB442441A
Cited
US2078796A
Cited
US2065951A
Cited
US2111442A
Cited
US2210970A
Cited
US2268956A
Cited
US2240184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |