US2584501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flexible corrugated tubes
Assignee: Individual
•
Filing: 1945-03-09
•
Granted: 1952-02-05
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Roberts Robert Eldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:54
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00; Y; Y10; Y10S; Y10S264/00; Y10S264/52; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2156899A
Cited
US165324A
Cited
GB189610796A
Cited
US713560A
Cited
US1576767A
Cited
US1746701A
Cited
US1819175A
Cited
US1809260A
Cited
US1937069A
Cited
GB393469A
Cited
US1974285A
Cited
US2013684A
Cited
US2090794A
Cited
US2140638A
Cited
US2176762A
Cited
US2272704A
Cited
US2321064A
Cited
US2396059A
Cited
US2430081A
Cited
US2508774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |