Patent US1187903A successfully refreshed from Google Patents.
US1187903A
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US
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Electrolytic apparatus.
Assignee: Individual
•
Filing: 1913-06-30
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Granted: 1916-06-20
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Expires: 1933-06-30
Abstract
No abstract record available.
Inventors
- 👤 William E Greenawalt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:02
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/16; C25D17/22; C25D17/26
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) | 1919-06-20 | 1919-12-20 | 1920-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-06-20 | 1923-12-20 | 1924-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-06-20 | 1927-12-20 | 1928-06-20 | $7700.00 | Window Closed / Lapsed |