Patent US2583176A successfully refreshed from Google Patents.
US2583176A
Expired / Lapsed
US
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Sprinkler
Assignee: HAUTAU STAMPING Co
•
Filing: 1946-10-19
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Granted: 1952-01-22
•
Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hautau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/12; B05B1/30; B05B1/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1989525A
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US2240392A
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US2228031A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |