US2836986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control aid
Assignee: Individual
•
Filing: 1954-07-21
•
Granted: 1958-06-03
•
Expires: 1974-07-21
Abstract
No abstract record available.
Inventors
- 👤 Kretz Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:31
CPC Classifications
G; G05; G05G; G05G7/00; B; B64; B64C; B64C13/00; B64C13/24; G05G25/00; G05G2700/00; G05G2700/12; G05G2700/14; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2146
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |