Patent US3718235A successfully refreshed from Google Patents.
US3718235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring trigger assembly for mixing dual liquids
Assignee: Individual
•
Filing: 1971-12-13
•
Granted: 1973-02-27
•
Expires: 1991-12-13
Abstract
Abstract A SPRING TRIGGER ASSEMBLY IS PROVIDED FOR PLACING, FIRST AND SECOND LIQUIDS IN FIRST AND SECOND CONTAINERS NORMALLY SEPARATED, INTO COMMUNICATION WITH EACH OTHER FOR MIXING. THE ASSEMBLY ITSELF IS INCLUDED IN THE SECOND CONTAINER AND COMPRISES A COILED COMPRESSION SPRING, A SPRING TRIGGER MEANS, AND AN INERTIA MEANS COOPERATING WITH THE SPRING TRIGGER MEANS TO HOLD THE COMPRESSION SPRING IN A COMPRESSED STATE AND, WHEN SHAKEN LOOSE FROM THE SPRING TRIGGER MEANS, TO RELEASE THE COMPRESSION SPRING SO THAT IT CAN EXPAND TO THEREBY OPEN THE SECOND CONTAINER AND PROVIDE COMMUNICATION BETWEEN THE LIQUIDS.
Inventors
- 👤 P Cronan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:50
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/68; B65D83/682; B65D83/687; B65D81/00; B65D81/32; B65D81/3216; B65D81/3222
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |