US2700423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler head shutoff
Assignee: SC Johnson and Son Inc
•
Filing: 1951-08-03
•
Granted: 1955-01-25
•
Expires: 1971-08-03
Abstract
No abstract record available.
Inventors
- 👤 Carl A Burkert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/528; F16K31/5286; A; A62; A62C; A62C37/00; A62C37/08; A62C37/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478181A
Cited
US1547116A
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US843556A
Cited
US917923A
Cited
US1167860A
Cited
US2491835A
Cited
US2466126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |