US2128552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler head
Assignee: Mueller Brass Co
•
Filing: 1936-10-07
•
Granted: 1938-08-30
•
Expires: 1956-10-07
Abstract
No abstract record available.
Inventors
- 👤 Harold K Rader
- 👤 John E Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:09
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/26; B05B1/262; B05B15/00; B05B15/70; B05B15/72; B05B15/74; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-08-29 | 1942-02-28 | 1942-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-29 | 1946-02-28 | 1946-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-29 | 1950-02-28 | 1950-08-30 | $7700.00 | Window Closed / Lapsed |