US3376583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink construction
Assignee: Air Control Inc
•
Filing: 1965-05-24
•
Granted: 1968-04-09
•
Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Louis O Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:53
CPC Classifications
C; C23; C23G; C23G3/00; C23F; C23F1/00; C23F1/08; E; E03; E03C; E03C1/00; E03C1/12; E03C1/18; E03C1/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1213113A
Cited
US1173520A
Cited
US1896951A
Cited
US1955579A
Cited
US2126131A
Cited
US2539464A
Cited
FR1213132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |