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Patent US3395060A successfully refreshed from Google Patents.
US3395060A
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US
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Method of strenghtening a felt web
Assignee: Filzfabrik Fulda GmbH and Co
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Filing: 1965-03-29
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Granted: 1968-07-30
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Guldner Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/542; D04H1/549; C; C21; C21D; C21D9/00; C21D9/0031; D04H1/44; D04H1/46; D04H1/48; D04H1/488; D04H1/552; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2893
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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |