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Patent US2639191A successfully refreshed from Google Patents.
US2639191A
Expired / Lapsed
US
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Sprinkler head and nozzle
Assignee: Individual
•
Filing: 1950-04-10
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Granted: 1953-05-19
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Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John O Hruby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:24
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0429; B05B1/00; B05B1/26; B05B1/262; B05B1/267; B05B3/008; B05B3/0444; Y; Y10; Y10S; Y10S239/00; Y10S239/01
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) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |