Patent US2223557A successfully refreshed from Google Patents.
Patent US1337744A successfully refreshed from Google Patents.
US1337744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler system for irrigating lawns, gardens, fields, and the like
Assignee: Individual
•
Filing: 1917-04-17
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Granted: 1920-04-20
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Expires: 1937-04-17
Abstract
No abstract record available.
Inventors
- 👤 William D Ballerstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:40
CPC Classifications
B; B05; B05B; B05B15/00; B05B15/70; B05B15/72; B05B15/74
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) | 1923-04-20 | 1923-10-20 | 1924-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-20 | 1927-10-20 | 1928-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-20 | 1931-10-20 | 1932-04-20 | $7700.00 | Window Closed / Lapsed |