Patent US4546993A successfully refreshed from Google Patents.
Patent US2487315A successfully refreshed from Google Patents.
US2487315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spud for flush tank levers
Assignee: CRAMPTON Manufacturing CO
•
Filing: 1946-07-22
•
Granted: 1949-11-08
•
Expires: 1966-07-22
Abstract
No abstract record available.
Inventors
- 👤 Basil R Crampton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:31
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/02; E03D5/09; E03D5/092; Y; Y10; Y10S; Y10S411/00; Y10S411/998
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US863183A
Cited
US1501149A
Cited
US1616560A
Cited
US1784026A
Cited
US1966427A
Cited
US2233159A
Cited
US2313840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |