Patent US3231452A successfully refreshed from Google Patents.
US3231452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honeycomb coreboard and method for making same
Assignee: Individual
•
Filing: 1961-12-12
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Granted: 1966-01-25
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Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 Richard V Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:48
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; E04C2/365; B; B21; B21D; B21D47/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A LAMINATED CELLULAR UNIT COMPRISING: A PLURALITY OF PARALLEL CORRUGATED STRIPS; A PLURALITY OF PARALLEL RELATIVELY SMOOTH STRIPS HAVING GREATER WIDTHS THAN SAID CORRUGATED STRIPS; SAID RELATIVELY SMOOTH STRIPS AND SAID CORRUGATED STRIPS BEING ARRANGED IN CONTACTING, ALTERNATING RELATIONSHIP WITH THE FLUTES OF EACH CORRUGATED STRIP CONTACTING A RELATIVELY SMOOTH STRIP AND FORMING A PLURALITY OF PARALLEL CELLS, SAID RELATIVELY SMOOTH STRIPS FORMING FLAPS EXTENDING BEYOND ONE END OF SAID CELLS, SAID FLAPS BEING FOLDED INTO ENGEGEMENT WITH THE EDGE OF AN ADJACENT CORRUGATED STRIP AND CLOSING THE CELLS FORMED BY
Claim 2
Dependent Claim
91 words
A LAMINATED CELLULAR UNIT COMPRISING: A PLURALITY OF PARALLEL CORRUGATED STRIPS; A PLURALITY OF PARALLEL RELATIVELY SMOOTH STRIPS HAVING GREATER WIDTHS THAN SAID CORRUGATED STRIPS; SAID RELATIVELY SMOOTH STRIPS AND SAID CORRUGATED STRIPS BEING ARRANGED IN CONTACTING, ALTERNATING RELATIONSHIP WITH THE FLUTES OF EACH CORRUGATED STRIP CONTACTING A RELATIVELY SMOOTH STRIP AND FORMING A PLURALITY OF PARALLEL CELLS, SAID RELATIVELY SMOOTH STRIPS FORMING FLAPS EXTENDING BEYOND ONE END OF SAID CELLS, SAID FLAPS BEING FOLDED INTO ENGEGEMENT WITH THE EDGE OF AN ADJACENT CORRUGATED STRIP AND CLOSING THE CELLS FORMED BY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |