Patent US2877784A successfully refreshed from Google Patents.
US2877784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety water supply shut-off device
Assignee: Individual
•
Filing: 1956-07-20
•
Granted: 1959-03-17
•
Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 John E Torgerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:02
CPC Classifications
F; F17; F17D; F17D5/00; F17D5/02; Y; Y10; Y10T; Y10T137/00; Y10T137/1624
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |