Patent US2912163A successfully refreshed from Google Patents.
US2912163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording aggregate totals of measurements of parameters
Assignee: National Research Council Canada
•
Filing: 1956-10-19
•
Granted: 1959-11-10
•
Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas Kitson Van Tuyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:21
CPC Classifications
G; G01; G01D; G01D1/00; G01D1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2039404A
Cited
US2207715A
Cited
US2068719A
Cited
US2537498A
Cited
US2534544A
Cited
US2610843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |