US3538608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground settlement indicating apparatus
Assignee: KENNETH E BRONSON
•
Filing: 1967-11-01
•
Granted: 1970-11-10
•
Expires: 1987-11-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E Bronson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:56
CPC Classifications
E; E02; E02D; E02D1/00; E02D1/08; G; G01; G01B; G01B7/00; G01B7/16; G01B7/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
SU185501A1
Cited
DE124175C
Cited
US399676A
Cited
US1625976A
Cited
US2166212A
Cited
US2659151A
Cited
FR1088196A
Cited
US3140609A
Cited
US3276123A
Cited
US3327396A
Cited
US3404460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |