US2709827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking caster
Assignee: Individual
•
Filing: 1953-12-02
•
Granted: 1955-06-07
•
Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 John A Volz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:25
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/04; B60B33/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297368A
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US408595A
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US652426A
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US726447A
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US943432A
Cited
US1064244A
Cited
US1810971A
Cited
US1749751A
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US2033146A
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US2398812A
Cited
US2429494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |