US2845302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain for sprinkler
Assignee: Individual
•
Filing: 1956-10-23
•
Granted: 1958-07-29
•
Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 Hobart W Hanf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:42
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B05B15/72; B05B15/74; B05B1/00; B05B1/30; B05B11/00; B05B11/0005; B05B11/0089; B05B11/0091; B05B11/0094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US107432A
Cited
USRE23646E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |