Patent US2583791A successfully refreshed from Google Patents.
US2583791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic comparator
Assignee: Jack & Heintz Prec Ind Inc
•
Filing: 1945-09-27
•
Granted: 1952-01-29
•
Expires: 1965-09-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Neff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:23
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/0002; G01B5/0004; G01B7/00; G01B7/02; G01B7/06; G01B7/10; G01B7/102; Y; Y10; Y10S; Y10S33/00; Y10S33/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1835807A
Cited
US2016978A
Cited
US2065951A
Cited
US2240184A
Cited
US2177399A
Cited
US2365592A
Cited
US2350862A
Cited
US2365593A
Cited
US2361788A
Cited
US2364237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |