US3454037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: AMERICA METER Co
•
Filing: 1966-11-09
•
Granted: 1969-07-08
•
Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Edward J Grace
- 👤 Malcolm W Cornforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:46
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2909717A
Cited
US3174504A
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US3219046A
Cited
US3244863A
Cited
US3272217A
Cited
US3181403A
Cited
US3206665A
Cited
US3264983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |