US3498328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary valve
Assignee: BUELL ENG CO
•
Filing: 1967-12-29
•
Granted: 1970-03-03
•
Expires: 1987-12-29
Abstract
No abstract record available.
Inventors
- 👤 Lauritz E Mylting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:13
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K31/00; F16K31/02; F16K31/04; F16K31/041; F16K31/043; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1080134A
Cited
US1095209A
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US1197238A
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US1343490A
Cited
FR819648A
Cited
US2414154A
Cited
US2391196A
Cited
GB937899A
Cited
US3199537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |