US3005978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-pneumatic data logger
Assignee: Fischer and Porter Co
•
Filing: 1955-12-01
•
Granted: 1961-10-24
•
Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Wapner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/54; G01D5/56; G01D1/00; G01D1/04; G01D1/06; G01D1/08; G01R; G01R17/00; G01R17/02; G01R17/04
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |