Patent US2877468A successfully refreshed from Google Patents.
US2877468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink molding
Assignee: Individual
•
Filing: 1955-05-12
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Granted: 1959-03-17
•
Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 Ivar S Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:34
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/32; E03C1/33; E03C1/335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2503982A
Cited
US2514740A
Cited
GB673001A
Cited
US2630579A
Cited
GB691835A
Cited
US2680250A
Cited
US2665430A
Cited
US2717397A
Cited
US2704370A
Cited
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 |