US3413552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Watthour meters having dust-proof casings
Assignee: Westinghouse Electric Corp
•
Filing: 1963-08-12
•
Granted: 1968-11-26
•
Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Daley
- 👤 Frederick E Mindt
- 👤 Frank G Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:55
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2970265A
Cited
US1351294A
Cited
US2323146A
Cited
US2476909A
Cited
US2470050A
Cited
US2790951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |