US3435497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand treatment
Assignee: Techniservice Corp
•
Filing: 1967-09-25
•
Granted: 1969-04-01
•
Expires: 1987-09-25
Abstract
No abstract record available.
Inventors
- 👤 Robert Kenneth Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:43
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12; B; B65; B65H; B65H54/00; B65H54/76; B65H54/84; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2854701A
Cited
US3174208A
Cited
US3108352A
Cited
GB953782A
Cited
US3152379A
Cited
US3340585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |