Patent US1394404A successfully refreshed from Google Patents.
US1394404A
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Assignee: Individual
•
Filing: 1920-02-17
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Granted: 1921-10-18
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Expires: 1940-02-17
Abstract
No abstract record available.
Inventors
- 👤 Boll Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:34
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/62; E06B1/64; E04; E04D; E04D13/00; E04D13/15; E04D13/158; E04D13/1585; E06B2001/622
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) | 1924-10-17 | 1925-04-18 | 1925-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-10-17 | 1929-04-18 | 1929-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-10-17 | 1933-04-18 | 1933-10-18 | $7700.00 | Window Closed / Lapsed |