Patent US2828816A successfully refreshed from Google Patents.
US2828816A
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US
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Window shutter
Assignee: IRVING WEISLER
•
Filing: 1955-02-28
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Granted: 1958-04-01
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Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Nestor Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:59
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/36; E06B9/367; E06B7/00; E06B7/02; E06B7/08; E06B7/084; Y; Y10; Y10S; Y10S160/00; Y10S160/90
Claims Analysis
Total Claims: 0
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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) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |