US3385014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable derricks
Assignee: Raymond International Inc
•
Filing: 1966-01-13
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Granted: 1968-05-28
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Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley C Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:52
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/023; B; B62; B62D; B62D55/00; B62D55/08; B62D55/084; E02; E02D; E02D7/00; E02D7/02; E02D7/06; E02D7/14; E02D7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |