Patent US131782A successfully refreshed from Google Patents.
US131782A
Expired / Lapsed
US
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Improvement in balance-wheels
Assignee: —
•
Filing: —
•
Granted: 1872-10-01
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Expires: 1889-10-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:02
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/28; F16C; F16C3/00; F16C3/04; F16C3/22; F16C3/28; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/211; Y10T74/2114; Y10T74/2115
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) | 1875-10-01 | 1876-04-01 | 1876-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-10-01 | 1880-04-01 | 1880-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-10-01 | 1884-04-01 | 1884-10-01 | $7700.00 | Window Closed / Lapsed |