Patent US2360582A successfully refreshed from Google Patents.
Patent US2514924A successfully refreshed from Google Patents.
US2815973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic seal
Assignee: CHICKSAN Co
•
Filing: 1955-07-05
•
Granted: 1957-12-10
•
Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 Donald M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; F16J15/3236; F16J15/166; Y; Y10; Y10S; Y10S285/00; Y10S285/909
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |