US2866508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gun test packer
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1958-12-30
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Walter L Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:18
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/119; E21B49/00; E21B49/08; E21B49/087; E21B49/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |