Patent US1139005A successfully refreshed from Google Patents.
Patent US1493347A successfully refreshed from Google Patents.
US1493347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonexplosive mass-supplying high-tensioned gases from combustion
Assignee: Individual
•
Filing: 1921-08-23
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Granted: 1924-05-06
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Expires: 1941-08-23
Abstract
No abstract record available.
Inventors
- 👤 Kochmann Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:18
CPC Classifications
C; C06; C06B; C06B31/00; C06B31/02; C06B31/04; C06B31/06; Y; Y10; Y10S; Y10S60/00; Y10S60/914
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) | 1927-05-06 | 1927-11-05 | 1928-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-06 | 1931-11-05 | 1932-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-06 | 1935-11-05 | 1936-05-06 | $7700.00 | Window Closed / Lapsed |