US3064739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire protection system
Assignee: Grinnell Corp
•
Filing: 1960-06-29
•
Granted: 1962-11-20
•
Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Eric P Hanson
- 👤 Philip H Merdinyan
- 👤 Gordon H Milligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:14
CPC Classifications
A; A62; A62C; A62C37/00; A62C37/08; A62C37/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US971089A
Cited
US1885219A
Cited
US2327528A
Cited
US2570280A
Cited
US2867281A
Cited
US2804929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |