US3444869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet cleaning device
Assignee: Individual
•
Filing: 1965-11-04
•
Granted: 1969-05-20
•
Expires: 1985-11-04
Abstract
No abstract record available.
Inventors
- 👤 John E Guignon
- 👤 Helen G Guignon
- 👤 John E Guignon Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:33
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093; B08B9/0936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB179280A
Cited
US1545896A
Cited
US1827085A
Cited
US1693885A
Cited
US1838634A
Cited
FR806337A
Cited
DE700302C
Cited
DE957050C
Cited
US2858836A
Cited
US3104407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |