US2868397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manipulator
Assignee: VULCAN RES CORP
•
Filing: 1952-11-13
•
Granted: 1959-01-13
•
Expires: 1972-11-13
Abstract
No abstract record available.
Inventors
- 👤 Carl J Westling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:10
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21J13/10; F; F27; F27D; F27D3/00; F27D3/0025; F27D3/003; F27D3/06
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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |