US3428015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical vehicle
Assignee: SAMUEL E CLOUD
•
Filing: 1966-12-29
•
Granted: 1969-02-18
•
Expires: 1986-12-29
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Cloud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:55
CPC Classifications
A; A63; A63B; A63B19/00; A63B19/02; B; B60; B60B; B60B19/00; B60B19/06; B60B5/00; B60B5/02; B62; B62K; B62K1/00; B60B2360/00; B60B2360/30; B60B2360/32; B60B2360/50; B60B2900/00; B60B2900/50; B60B2900/531; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735471A
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US1265496A
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US1865095A
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US2508304A
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US2873459A
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US2838022A
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US2938727A
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US3066951A
Cited
US3252711A
Cited
US3329425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |