Patent US2694655A successfully refreshed from Google Patents.
US2694655A
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Process for sizing glass filaments and product produced thereby
Assignee: Wyeth Holdings LLC
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Filing: 1951-07-13
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Granted: 1954-11-16
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Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Pullman
- 👤 Jr Walter F Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN A PROCESS FOR PRODUCING GLASS FILAMENTS, THE STEPS COMPRISING APPLYING TO SAID FILAMENTS, WHILE IN A COMPARATIVELY HOT CONDITION, A SIZING MATERIAL COMPRISING THE CONDENSATION PRODUCT OF FROM 1-3 MOLS OF A DIFUNCTIONAL HALOHYDRIN WITH 1 MOL OF AN ALIPHATIC PRIMARY AMINE CONTAINING 16-22 CARBON ATOM AND HEATING SAID SIZING COATED GLASS FILAMENTS.
Claim 2
Dependent Claim
54 words
IN A PROCESS FOR PRODUCING GLASS FILAMENTS, THE STEPS COMPRISING APPLYING TO SAID FILAMENTS, WHILE IN A COMPARATIVELY HOT CONDITION, A SIZING MATERIAL COMPRISING THE CONDENSATION PRODUCT OF FROM 1-3 MOLS OF A DIFUNCTIONAL HALOHYDRIN WITH 1 MOL OF AN ALIPHATIC PRIMARY AMINE CONTAINING 16-22 CARBON ATOM AND HEATING SAID SIZING COATED GLASS FILAMENTS.
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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) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |