US3489428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing support for a camping trailer and the like
Assignee: Ward Manufacturing Inc
•
Filing: 1967-06-01
•
Granted: 1970-01-13
•
Expires: 1987-06-01
Abstract
No abstract record available.
Inventors
- 👤 William B Hunter
- 👤 Robert E Wiegert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:21
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0857; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/0411; B60S9/00; B60S9/02; B60S9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1107792A
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US2135080A
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US2153722A
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US2296789A
Cited
US2571390A
Cited
US2865658A
Cited
US3314692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |