Patent US3308943A successfully refreshed from Google Patents.
US3308943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging purified graphite and the package formed thereby
Assignee: Individual
•
Filing: 1963-08-05
•
Granted: 1967-03-14
•
Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 Davila Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:16
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
40 words
AS A NEW ARTICLE OF MANUFACTURE, AT LEAST ONE CARBON ARTICLE OF HIGH PURITY AND A PERMEABLE ENCLOSURE ENVELOPING THE ARTICLE OR ARTICLES, SAID ENCLOSURE BEING MADE OF CARBON OF THE SAME HIGH PURITY AS THE CONTENTS OF THE ENCLOSURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |