US195471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in water-proof cellar-bottoms
Assignee: —
•
Filing: —
•
Granted: 1877-09-25
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Expires: 1894-09-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:38
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/70; E04D; E04D13/00; E04D13/04; E04D13/0404; E04D13/0477
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) | 1880-09-24 | 1881-03-26 | 1881-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-09-24 | 1885-03-26 | 1885-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-09-24 | 1889-03-26 | 1889-09-25 | $7700.00 | Window Closed / Lapsed |