Patent US2729504A successfully refreshed from Google Patents.
US2729504A
Expired / Lapsed
US
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Sprinkler and sealing construction
Assignee: Individual
•
Filing: 1951-07-02
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Granted: 1956-01-03
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Expires: 1971-07-02
Abstract
No abstract record available.
Inventors
- 👤 Michael F Zukas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:17
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2034607A
Cited
US2184901A
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US2400658A
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US2459643A
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US2560662A
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US2571763A
Cited
US2459244A
Cited
US2532356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |