US2917280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample taking apparatus
Assignee: Pgac Dev Co
•
Filing: 1952-10-04
•
Granted: 1959-12-15
•
Expires: 1972-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jacques H Castel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:05
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/02; E21B49/04
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |