US1364273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of lampblack
Assignee: Masson Co
•
Filing: 1918-12-23
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Granted: 1921-01-04
•
Expires: 1938-12-23
Abstract
No abstract record available.
Inventors
- 👤 Julian M Gerard
- 👤 Jr Henry J Masson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:14
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/54
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) | 1924-01-04 | 1924-07-05 | 1925-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-01-04 | 1928-07-05 | 1929-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-01-04 | 1932-07-05 | 1933-01-04 | $7700.00 | Window Closed / Lapsed |