US3062052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring variable physical conditions employing a sensing device generating a variable frequency signal
Assignee: Shell USA Inc
•
Filing: 1958-04-28
•
Granted: 1962-11-06
•
Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Robert H Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:00
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/024; E; E21; E21B; E21B47/00; E21B47/007; E21B47/06; E21B47/12; Y; Y10; Y10S; Y10S73/00; Y10S73/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |