US353631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of making porous earthenware
Assignee: —
•
Filing: —
•
Granted: 1886-11-30
•
Expires: 1903-11-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:29
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/06; C04B38/063; C04B38/0635; C04B38/0645; C04B38/0675; Y; Y10; Y10S; Y10S264/00; Y10S264/63
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) | 1889-11-29 | 1890-05-31 | 1890-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-11-29 | 1894-05-31 | 1894-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-11-29 | 1898-05-31 | 1898-11-30 | $7700.00 | Window Closed / Lapsed |