US3420414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot water heater and dispenser
Assignee: ALLEN ELECTRONICS Inc
•
Filing: 1967-04-24
•
Granted: 1969-01-07
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 William C Christine
- 👤 Joseph E Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:57
CPC Classifications
B; B67; B67D; B67D3/00; B67D3/0022
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2646189A
Cited
US3036740A
Cited
US3326417A
Cited
US3178557A
Cited
US3218955A
Cited
US3143636A
Cited
US3248009A
Cited
US3247940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |