US2478486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire line guide
Assignee: Individual
•
Filing: 1947-04-19
•
Granted: 1949-08-09
•
Expires: 1967-04-19
Abstract
No abstract record available.
Inventors
- 👤 William K Holleron
- 👤 William L Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:43
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; B; B66; B66B; B66B7/00; B66B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US842055A
Cited
US1643262A
Cited
US2016755A
Cited
US2140426A
Cited
US2211299A
Cited
US2187392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |