Patent US4645511A successfully refreshed from Google Patents.
Patent US3463229A successfully refreshed from Google Patents.
US3463229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transporter and anchor for well casing interliner or boot
Assignee: Individual
•
Filing: 1967-06-27
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Granted: 1969-08-26
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Expires: 1987-06-27
Abstract
No abstract record available.
Inventors
- 👤 Donald L Hinkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:15
CPC Classifications
E; E21; E21B; E21B23/00; E21B43/00; E21B43/02; E21B43/10; E21B43/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1030084A
Cited
US2948340A
Cited
US3354955A
Cited
US3358760A
Cited
US3379257A
Cited
US3356142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |