US2550402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor drain
Assignee: Individual
•
Filing: 1945-09-24
•
Granted: 1951-04-24
•
Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Lawrence N Boosey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:32
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/0407; E03F5/0409; E03F2005/0412; E03F2005/0413; E03F2005/0416
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) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |