Patent US564906A successfully refreshed from Google Patents.
Patent US772908A successfully refreshed from Google Patents.
US772908A
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US
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Flashing device for incandescent electric lamps.
Assignee: Wilmarth & Morman Co
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Filing: 1903-12-09
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Granted: 1904-10-18
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Expires: 1923-12-09
Abstract
No abstract record available.
Inventors
- 👤 Corneil Ridderhof
- 👤 Greyson E Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:37
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/2825; Y; Y10; Y10S; Y10S40/00; Y10S40/902; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
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) | 1907-10-18 | 1908-04-18 | 1908-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-10-18 | 1912-04-18 | 1912-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-10-18 | 1916-04-18 | 1916-10-18 | $7700.00 | Window Closed / Lapsed |