Patent US2535202A successfully refreshed from Google Patents.
US2535202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating, recording, and controlling apparatus
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1945-02-27
•
Granted: 1950-12-26
•
Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 Gregory Charles Henry
- 👤 Hall John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
G; G01; G01L; G01L7/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1062138A
Cited
GB234194A
Cited
US2118248A
Cited
US2146684A
Cited
US2298112A
Cited
US2369463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |