Patent US4021148A successfully refreshed from Google Patents.
US3485437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tear resistant article
Assignee: Primerica Inc
•
Filing: 1968-02-05
•
Granted: 1969-12-23
•
Expires: 1988-02-05
Abstract
No abstract record available.
Inventors
- 👤 Richard A Gruentzel
- 👤 Peter D Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:42
CPC Classifications
B; B65; B65D; B65D33/00; B65D75/00; B65D75/52; Y; Y10; Y10S; Y10S383/00; Y10S383/903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2138119A
Cited
US2099425A
Cited
US3045891A
Cited
US3142437A
Cited
US3186628A
Cited
US3375969A
Cited
US3372857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |