US2982054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skylight
Assignee: Individual
•
Filing: 1955-10-17
•
Granted: 1961-05-02
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Robert H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:02
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2354485A
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US2478121A
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US2557660A
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US2546430A
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US2726222A
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US2688580A
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US2746891A
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US2693156A
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US2710335A
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US2794293A
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US2842073A
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US2870793A
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |