US3326531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing device for photographic processing solutions
Assignee: MATHE SONIC CO Inc
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Filing: 1964-12-03
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Granted: 1967-06-20
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph G Matheson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:40
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DEVICE FOR MIXING CHEMICAL SOLUTIONS COMPRISING A CAPSULE HAVING TOP BOTTOM WALLS AND CONTAINING A CHEMICAL INGREDIENT, A WATER TANK DISPOSED ADJACENT SAID TOP WALL AND HAVING A BOTTOM OPENING EXPOSING AT LEAST A PORTION OF SAID TOP WALL, A PIERCING DEVICE MOVABLE THROUGH SAID OPENING TO PIERCE SAID TOP WALL, AND A STIRRING DEVICE, SAID PIERCING DEVICE BEING OF A SIZE TO MAKE A HOLE LARGE ENOUGH TO ADMIT SAID STIRRING DEVICE INTO SAID CAPSULE.
Claim 2
Independent Claim
77 words
A DEVICE FOR MIXING CHEMICAL SOLUTIONS COMPRISING A CAPSULE HAVING TOP BOTTOM WALLS AND CONTAINING A CHEMICAL INGREDIENT, A WATER TANK DISPOSED ADJACENT SAID TOP WALL AND HAVING A BOTTOM OPENING EXPOSING AT LEAST A PORTION OF SAID TOP WALL, A PIERCING DEVICE MOVABLE THROUGH SAID OPENING TO PIERCE SAID TOP WALL, AND A STIRRING DEVICE, SAID PIERCING DEVICE BEING OF A SIZE TO MAKE A HOLE LARGE ENOUGH TO ADMIT SAID STIRRING DEVICE INTO SAID CAPSULE.
References Cited (Backward Citations)
US1607768A
Cited
US2176923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |