Patent US2929969A successfully refreshed from Google Patents.
US2929969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacity operated apparatus
Assignee: SECURITY CONTROLS Inc
•
Filing: 1957-01-15
•
Granted: 1960-03-22
•
Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Walter W Denysiuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:35
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/088; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2193; Y10T74/2194; Y10T74/2196; Y10T83/00; Y10T83/081; Y10T83/099
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |