US1525368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-well seal
Assignee: Individual
•
Filing: 1923-07-16
•
Granted: 1925-02-03
•
Expires: 1943-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jarret L Cameron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:01
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1293
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-02-03 | 1928-08-04 | 1929-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-02-03 | 1932-08-04 | 1933-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-02-03 | 1936-08-04 | 1937-02-03 | $7700.00 | Window Closed / Lapsed |