US685957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the utilization of radiant energy.
Assignee: Individual
•
Filing: 1901-03-21
•
Granted: 1901-11-05
•
Expires: 1921-03-21
Abstract
No abstract record available.
Inventors
- 👤 Nikola Tesla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:09
CPC Classifications
H; H02; H02S; H02S99/00; H04; H04B; H04B10/00; H04B10/60; H04B10/66; H04B10/69; H04B10/695; H04B10/80; H04B10/806; H04B10/807; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US577671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1904-11-04 | 1905-05-06 | 1905-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-11-04 | 1909-05-06 | 1909-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-11-04 | 1913-05-06 | 1913-11-05 | $7700.00 | Window Closed / Lapsed |