US2747938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Couplings for sprinklers and nozzles
Assignee: Individual
•
Filing: 1952-12-15
•
Granted: 1956-05-29
•
Expires: 1972-12-15
Abstract
No abstract record available.
Inventors
- 👤 Albert T Scheiwer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/38; B; B05; B05B; B05B15/00; B05B15/60; B05B15/65; F16L37/22; F16L37/23; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US801210A
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US1813581A
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US2255334A
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US2322877A
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US2307427A
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US2457993A
Cited
US2612337A
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US2568515A
Cited
US2512999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |