US2928419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor drain cover
Assignee: Individual
•
Filing: 1956-11-05
•
Granted: 1960-03-15
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Carl M Kruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:06
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/042; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86381
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US570543A
Cited
US602332A
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US608207A
Cited
US1052363A
Cited
US1625684A
Cited
US1773640A
Cited
US1885372A
Cited
US2008258A
Cited
US2202116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |