Patent US1099520A successfully refreshed from Google Patents.
US1099520A
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US
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Change-speed gearing.
Assignee: F W SPACKE MACHINE Co
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Filing: 1912-08-14
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Granted: 1914-06-09
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Expires: 1932-08-14
Abstract
No abstract record available.
Inventors
- 👤 Fred W Spacke
- 👤 Dalmar T Brownlee
- 👤 William Spacke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:45
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/40; F16H63/46; D; D06; D06F; D06F13/00; D06F13/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19279; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/19456
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) | 1917-06-08 | 1917-12-08 | 1918-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-06-08 | 1921-12-08 | 1922-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-06-08 | 1925-12-08 | 1926-06-09 | $7700.00 | Window Closed / Lapsed |