Patent US3453947A successfully refreshed from Google Patents.
US3453947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee maker
Assignee: Connecticut Scientific Center Inc
•
Filing: 1967-05-18
•
Granted: 1969-07-08
•
Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 Edward T George
- 👤 Irving Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/057; A47J31/0573
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US491478A
Cited
US741196A
Cited
US1385453A
Cited
US1431603A
Cited
US1963950A
Cited
US2455660A
Cited
US2604031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |