US663141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming clay blocks.
Assignee: Individual
•
Filing: 1900-03-29
•
Granted: 1900-12-04
•
Expires: 1920-03-29
Abstract
No abstract record available.
Inventors
- 👤 William Walker
- 👤 Harry W Croft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:47
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/02; C; C04; C04B; C04B2/00; C04B2/02; C04B2/04; C04B2/06; C04B2/063
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) | 1903-12-04 | 1904-06-04 | 1904-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-12-04 | 1908-06-04 | 1908-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-12-04 | 1912-06-04 | 1912-12-04 | $7700.00 | Window Closed / Lapsed |