US2841834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding window sash structure
Assignee: ROBERT R CHESLEY
•
Filing: 1955-07-29
•
Granted: 1958-07-08
•
Expires: 1975-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr John Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/46; E06B3/4609
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US981411A
Cited
GB163872A
Cited
US1843059A
Cited
US1975275A
Cited
US2132748A
Cited
US2367129A
Cited
GB602098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |