US2903740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for forming hollow articles
Assignee: Individual
•
Filing: 1952-12-10
•
Granted: 1959-09-15
•
Expires: 1972-12-10
Abstract
No abstract record available.
Inventors
- 👤 Parfrey Francis Trigg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:30
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/64; B29C49/66; A; A45; A45D; A45D2/00; A45D2/12; A45D2/24; A45D2/32; B29C49/02; B29C49/04; B29C49/28; B29C49/30; B29C49/32; B65; B65D; B65D81/00; B65D81/18; B65D81/20; B65D81/2007; B65D81/2015; B29C35/00; B29C35/16; B29C2035/1658; B29C49/58; B29C2049/5844; B29C49/6604; B29C2049/6606; B29C2049/6607; B29C2049/6615; B29C2049/6646; B29C33/00; B29C33/20; B29C33/26; Y; Y10; Y10S; Y10S425/00; Y10S425/806
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB310421A
Cited
US2009793A
Cited
US2167724A
Cited
US2180737A
Cited
US2150017A
Cited
US2288454A
Cited
US2348738A
Cited
US2349177A
Cited
US2359216A
Cited
DE852609C
Cited
GB670716A
Cited
US2810934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |