US3544910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog to digital method and apparatus for monitoring the status of a parameter
Assignee: Individual
•
Filing: 1968-05-07
•
Granted: 1970-12-01
•
Expires: 1988-05-07
Abstract
No abstract record available.
Inventors
- 👤 Russell W Ralphs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G01; G01K; G01K7/00; G01K7/16; G01K7/22; G01K7/24; G01K7/245; G05B; G05B11/00; G05B11/01; G05B11/26; G05B11/28; G05D23/1906; G05D23/1913; H; H03; H03K; H03K5/00; H03K5/22; H03K5/26; H03K7/00; H03K7/08; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3227863A
Cited
US3328688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |