US3434661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow making
Assignee: Individual
•
Filing: 1966-02-01
•
Granted: 1969-03-25
•
Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Willard Sterling Boyle
- 👤 David Cyril Creaghan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:45
CPC Classifications
F; F25; F25C; F25C3/00; F25C3/04; F25C2303/00; F25C2303/048; F25C2303/0481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527230A
Cited
US3056556A
Cited
US2934275A
Cited
US3010660A
Cited
US3272434A
Cited
FR1372024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |