Patent US1887732A successfully refreshed from Google Patents.
Patent US2520485A successfully refreshed from Google Patents.
US2520485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safe failure measuring and controlling apparatus
Assignee: Honeywell Inc
•
Filing: 1948-08-31
•
Granted: 1950-08-29
•
Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Rudolf F Wild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:42
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/026; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2452023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |