US2455285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain gauge
Assignee: Gulf Research and Development Co
•
Filing: 1945-09-13
•
Granted: 1948-11-30
•
Expires: 1965-09-13
Abstract
No abstract record available.
Inventors
- 👤 Forest F Versaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:43
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/09; G; G01; G01N; G01N3/00; G01N3/58; Y; Y10; Y10S; Y10S33/00; Y10S33/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB202691A
Cited
US1580430A
Cited
DE521011C
Cited
US1985576A
Cited
US2013810A
Cited
FR812000A
Cited
US2212085A
Cited
US2152556A
Cited
US2268783A
Cited
US2325345A
Cited
US2304402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |