Patent US679312A successfully refreshed from Google Patents.
US679312A
Expired / Lapsed
US
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Adjustable chair-back.
Assignee: CLAUDE M HART
•
Filing: 1900-05-09
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Granted: 1901-07-30
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Expires: 1920-05-09
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel B Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:27
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/026; B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/235; B60N2/2356
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) | 1904-07-29 | 1905-01-28 | 1905-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-07-29 | 1909-01-28 | 1909-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-07-29 | 1913-01-28 | 1913-07-30 | $7700.00 | Window Closed / Lapsed |