US2635306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weathering operator for jalousie windows
Assignee: Individual
•
Filing: 1952-12-24
•
Granted: 1953-04-21
•
Expires: 1972-12-24
Abstract
No abstract record available.
Inventors
- 👤 Robert H Zankl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:55
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE447047C
Cited
CH206649A
Cited
US2290463A
Cited
US2329868A
Cited
US2457871A
Cited
GB623828A
Cited
US2576626A
Cited
US2587567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |