US2609879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent type packing means for wells
Assignee: Atlantic Richfield Co
•
Filing: 1949-01-05
•
Granted: 1952-09-09
•
Expires: 1969-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jack C Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1294; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44068
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US859304A
Cited
US1641467A
Cited
US2291143A
Cited
US2270647A
Cited
US2355199A
Cited
US2328840A
Cited
US2404692A
Cited
US2435899A
Cited
US2467801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |