US2918259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic slip joints
Assignee: Individual
•
Filing: 1956-07-09
•
Granted: 1959-12-22
•
Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Sr Franklin L Le Bus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:08
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/06; E21B17/07; Y; Y10; Y10S; Y10S285/00; Y10S285/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1600744A
Cited
US2065262A
Cited
US2309866A
Cited
US2506795A
Cited
US2572895A
Cited
US2851252A
Cited
US2852231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |