Patent US3502121A successfully refreshed from Google Patents.
US3502121A
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US
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Safety mechanism for automatic nozzle
Assignee: Dover Corp
•
Filing: 1966-11-14
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Granted: 1970-03-24
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Moore
- 👤 Chester Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48; B67D7/54; B67D2007/545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2818889A
Cited
US2867249A
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US3088500A
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US3012592A
Cited
US2934103A
Cited
US3085600A
Cited
US3276486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |