Patent US2985621A successfully refreshed from Google Patents.
US2985621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light stabilized polyamide
Assignee: Glanzstoff AG
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Filing: 1959-04-22
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Granted: 1961-05-23
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Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Brandes Jurgen
- 👤 Gewehr Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:07
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A COMPOSITION OF MATTER COMPRISING A POLYAMIDE AND A COMPLEX POLYPHOSPHATE SALT OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING A MANGANESE, COBALT, NICKEL, COPPER AND CHROMIUM AS A LIGHT STABILIZING AGENT FOR SAID POLYAMIDE.
Claim 2
Dependent Claim
36 words
A COMPOSITION OF MATTER COMPRISING A POLYAMIDE AND A COMPLEX POLYPHOSPHATE SALT OF A HEAVY METAL SELECTED FROM THE GROUP CONSISTING A MANGANESE, COBALT, NICKEL, COPPER AND CHROMIUM AS A LIGHT STABILIZING AGENT FOR SAID POLYAMIDE.
References Cited (Backward Citations)
FR955259A
Cited
US2887462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |