US3039534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge for plugging holes
Assignee: Individual
•
Filing: 1959-03-16
•
Granted: 1962-06-19
•
Expires: 1979-03-16
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Koop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:21
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/068; E21B33/10; E21B33/13; E21B33/136
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1982963A
Cited
US2204906A
Cited
US2618345A
Cited
US2577610A
Cited
US2672200A
Cited
US2605846A
Cited
US2739878A
Cited
US2675878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |