US2780978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilator rain baffle for roof eaves
Assignee: Individual
•
Filing: 1953-09-21
•
Granted: 1957-02-12
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Harold T Peirson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04D13/152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA498203A
Cited
US1874083A
Cited
GB586341A
Cited
US2408665A
Cited
GB599418A
Cited
US2529462A
Cited
US2676554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |