US2723159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn sprinklers
Assignee: Individual
•
Filing: 1950-12-06
•
Granted: 1955-11-08
•
Expires: 1970-12-06
Abstract
No abstract record available.
Inventors
- 👤 Lewen R Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06; B05B1/00; B05B1/30; B05B1/3026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US436592A
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US1239373A
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US1976030A
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US2110112A
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US2101356A
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US2223441A
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US2335332A
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US2335281A
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US2381740A
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US2554040A
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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) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |