US2537628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Histogram computer
Assignee: Bridgestone Firestone Inc
•
Filing: 1947-09-04
•
Granted: 1951-01-09
•
Expires: 1967-09-04
Abstract
No abstract record available.
Inventors
- 👤 Elmo E Hanson
- 👤 John H Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:48
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US367625A
Cited
US931274A
Cited
US1296041A
Cited
US1572520A
Cited
US1790200A
Cited
US2037605A
Cited
US2305816A
Cited
US2293175A
Cited
US2297011A
Cited
US2297012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |