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US3130898A
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Assignee: TUBE VENT Ltd
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Filing: 1962-01-11
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Granted: 1964-04-28
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 Raamat Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:50
CPC Classifications
A; A47; A47H; A47H1/00; A47H1/02; A47H2001/0215; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/24; Y10T428/24744
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |