US2774058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning device for swimming pools
Assignee: Individual
•
Filing: 1954-04-22
•
Granted: 1956-12-11
•
Expires: 1974-04-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore T Raichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:10
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/02; G08B21/08; G08B21/084; E; E04; E04H; E04H4/00; E04H4/06; H; H01; H01H; H01H35/00; H01H35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1233199A
Cited
US2677816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |