US2843180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Walkers' aids
Assignee: Individual
•
Filing: 1954-03-11
•
Granted: 1958-07-15
•
Expires: 1974-03-11
Abstract
No abstract record available.
Inventors
- 👤 Schwartz Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:09
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/04; A61H2003/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2732004A
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US807409A
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US1177582A
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US2077569A
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US2211164A
Cited
FR988280A
Cited
US2616725A
Cited
US2598046A
Cited
US2774605A
Cited
US2654416A
Cited
US2792874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |