US1203276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric furnace.
Assignee: ATMOSPHERIC NITRATES (KILBURN SCOTT PATENTS) Ltd
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Filing: 1916-02-25
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Granted: 1916-10-31
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Expires: 1936-02-25
Abstract
No abstract record available.
Inventors
- 👤 Ernest Kilburn Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:48
CPC Classifications
B; B01; B01J; B01J12/00; B01J12/002; Y; Y10; Y10S; Y10S422/00; Y10S422/904
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) | 1919-10-31 | 1920-05-01 | 1920-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-31 | 1924-05-01 | 1924-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-31 | 1928-05-01 | 1928-10-31 | $7700.00 | Window Closed / Lapsed |