Patent US4101072A successfully refreshed from Google Patents.
Patent US155187A successfully refreshed from Google Patents.
US155187A
Expired / Lapsed
US
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Improvement in foot-rests for chairs
Assignee: —
•
Filing: —
•
Granted: 1874-09-22
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Expires: 1891-09-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:03
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/50; A47C7/506; A47C7/5062; A47C7/5066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1877-09-21 | 1878-03-23 | 1878-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1881-09-21 | 1882-03-23 | 1882-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1885-09-21 | 1886-03-23 | 1886-09-22 | $7700.00 | Window Closed / Lapsed |