US1329276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for adding to the output of a main power station, the output of one or more distant sources
Assignee: Individual
•
Filing: 1918-04-12
•
Granted: 1920-01-27
•
Expires: 1938-04-12
Abstract
No abstract record available.
Inventors
- 👤 Severn D Sprong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:30
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/04; H02J3/06
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) | 1923-01-26 | 1923-07-28 | 1924-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-01-26 | 1927-07-28 | 1928-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-01-26 | 1931-07-28 | 1932-01-27 | $7700.00 | Window Closed / Lapsed |