Patent US2491361A successfully refreshed from Google Patents.
US2491361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic drive mechanism for charts
Assignee: Honeywell Inc
•
Filing: 1945-03-10
•
Granted: 1949-12-13
•
Expires: 1965-03-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Burdick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:10
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/01; G; G04; G04B; G04B1/00; G04B1/26; G04B1/265; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |