US2827003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination skylight and fire vent construction
Assignee: SAWCO Inc A CORP
•
Filing: 1954-01-20
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Granted: 1958-03-18
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Expires: 1974-01-20
Abstract
No abstract record available.
Inventors
- 👤 Stetson Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03; E04D13/035; E04D13/0351; E04D13/0352
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US352818A
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US1095370A
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AU145626A
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GB341134A
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US2100782A
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US2329476A
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US2725003A
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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) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |