US761711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating-wall construction.
Assignee: Individual
•
Filing: 1903-10-06
•
Granted: 1904-06-07
•
Expires: 1923-10-06
Abstract
No abstract record available.
Inventors
- 👤 John W Redfern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/39; E04C1/392; E04B; E04B1/00; E04B1/0023; E04B1/62; E04B1/74; E04B2/00; E04B2/02; E04B2002/0295
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1907-06-07 | 1907-12-07 | 1908-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-06-07 | 1911-12-07 | 1912-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-06-07 | 1915-12-07 | 1916-06-07 | $7700.00 | Window Closed / Lapsed |