US3067941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the product of at least two factors and in particular for counting the consumption of electrical energy
Assignee: Electricite de France SA
•
Filing: 1957-10-04
•
Granted: 1962-12-11
•
Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Marlot Raoul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:06
CPC Classifications
G; G01; G01R; G01R21/00; G01R21/001; G06; G06Q; G06Q50/00; G06Q50/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1920788A
Cited
US2185363A
Cited
US2418521A
Cited
US2420374A
Cited
US2432141A
Cited
US2549473A
Cited
US2469031A
Cited
US2648832A
Cited
US2816279A
Cited
US2848161A
Cited
US2790399A
Cited
US2891725A
Cited
US2880935A
Cited
US2950052A
Cited
US2969183A
Cited
US2979695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |