Patent US2968593A successfully refreshed from Google Patents.
Patent US2977145A successfully refreshed from Google Patents.
US2977145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal construction having plural female elements
Assignee: A Rifkin Co
•
Filing: 1958-09-19
•
Granted: 1961-03-28
•
Expires: 1978-09-19
Abstract
No abstract record available.
Inventors
- 👤 Arnold S Rifkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:52
CPC Classifications
B; B65; B65D; B65D63/00; B65D63/10; B65D63/1018; B65D63/1027; B65D63/1063; B65D33/00; B65D33/16; B65D33/34; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1498; Y10T292/00; Y10T292/48; Y10T292/497; Y10T292/499; Y10T292/50
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) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |