US2898988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling metal grille to serve as a closure device for a building
Assignee: The J G Wilson Corp
•
Filing: 1956-11-20
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Granted: 1959-08-11
•
Expires: 1976-11-20
Abstract
No abstract record available.
Inventors
- 👤 Maurice B Zoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:39
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/4962
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2015454A
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US2037458A
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US2095690A
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US2704680A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |