US3401751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry pipes sprinkler system
Assignee: STANDARD FIRE PROTECTION EQUIPMENT Co
•
Filing: 1966-04-22
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Granted: 1968-09-17
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Expires: 1986-04-22
Abstract
No abstract record available.
Inventors
- 👤 James W Loftin
- 👤 James H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:59
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/58; A62C35/64; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |