US3052304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing system
Assignee: Chemetron Corp
•
Filing: 1959-04-29
•
Granted: 1962-09-04
•
Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 Hilding V Williamson
- 👤 Edward H Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:20
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/009; A62C35/00; A62C35/58; A62C35/60; A62C35/605; A62C99/0009; A62C99/0018; A62C99/0027; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1335394A
Cited
US1241664A
Cited
GB219871A
Cited
US1958289A
Cited
US2373654A
Cited
US2502452A
Cited
US2669245A
Cited
US2878879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |