US2746799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinklers
Assignee: Individual
•
Filing: 1954-03-30
•
Granted: 1956-05-22
•
Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lewen R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:08
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/14; B05B1/20; A; A01; A01G; A01G25/00; A01G25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE130167C
Cited
US1173771A
Cited
US2092674A
Cited
US2070665A
Cited
US2566833A
Cited
US2621075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |