US3521679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing nozzle
Assignee: Dresser Industries Inc
•
Filing: 1968-04-18
•
Granted: 1970-07-28
•
Expires: 1988-04-18
Abstract
No abstract record available.
Inventors
- 👤 Edward L Copony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:46
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/48; F; F16; F16K; F16K21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3323560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |