Patent US5200682A successfully refreshed from Google Patents.
Patent US3474470A successfully refreshed from Google Patents.
US3474470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sustaining hinged toilet seat installation
Assignee: Swedish Crucible Steel Co
•
Filing: 1966-09-19
•
Granted: 1969-10-28
•
Expires: 1986-09-19
Abstract
No abstract record available.
Inventors
- 👤 Robert E Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:05
CPC Classifications
A; A47; A47K; A47K13/00; A47K13/12; E; E05; E05Y; E05Y2999/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1627275A
Cited
US1628200A
Cited
US1620701A
Cited
US2582420A
Cited
US2698958A
Cited
US2787006A
Cited
US2901753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |