US793539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building-block mold.
Assignee: WILLIAM PANNILL PETTYJOHN
•
Filing: 1904-02-25
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Granted: 1905-06-27
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Expires: 1924-02-25
Abstract
No abstract record available.
Inventors
- 👤 John Mclaren Pettyjohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:43
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B28; B28B; B28B1/00; B28B1/26; B28B1/261
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) | 1908-06-26 | 1908-12-26 | 1909-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-06-26 | 1912-12-26 | 1913-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-06-26 | 1916-12-26 | 1917-06-27 | $7700.00 | Window Closed / Lapsed |