Patent US3535315A successfully refreshed from Google Patents.
Patent US3456650A successfully refreshed from Google Patents.
US3456650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowback eliminator for collapsible tube
Assignee: Individual
•
Filing: 1966-11-29
•
Granted: 1969-07-22
•
Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Gilbert Schwartzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:40
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2056; B65D47/2062; B65D47/2075; B65D47/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1897276A
Cited
US2699888A
Cited
US2754821A
Cited
US2999498A
Cited
US3179300A
Cited
US3203454A
Cited
US3319837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |