US2539464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal sink construction
Assignee: Individual
•
Filing: 1947-02-10
•
Granted: 1951-01-30
•
Expires: 1967-02-10
Abstract
No abstract record available.
Inventors
- 👤 Glenn H Norquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/18; E03C1/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |