Patent US2836237A successfully refreshed from Google Patents.
US2836237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venetian blind construction
Assignee: Individual
•
Filing: 1956-01-30
•
Granted: 1958-05-27
•
Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hogin
- 👤 Seth S Belcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/303; E06B9/305; E06B2009/2423; E06B2009/2441; E06B2009/2447; E06B2009/2452
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |